Cordless telephone base



FIG. 1 is a front, top and right side perspective view of a cordless telephone base showing our new design;

FIG. 2 is a rear elevational view;

FIG. 3 is a left side elevational view;

FIG. 4 is a bottom plan view;

FIG. 5 is a top plan view. 

The ornamental design for a cordless telephone base, as shown and described. 